121st Street in Columbia Township, South Dakota

121st Street in Brown County is a gravel unclassified road. It runs in an east-west direction and crosses 398th Avenue, 399th Avenue and 401st Avenue and ends at 402nd Avenue, while the other end is a cul-de-sac. 121st Street also exists in Garland Township and Claremont Township.

Road Type
unclassified road
Route
east-west